The Sikorsky S92 has Growth Rotor Blades with anhedral blade tips providing enhanced lift and reduced blade-vortex interaction.

The Sikorsky S92 has Growth Rotor Blades with anhedral blade tips providing enhanced lift and reduced blade-vortex interaction. Stock Photo
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Image details

Contributor:

P_Prune / Alamy Stock Photo

Image ID:

ERWBMG

File size:

34.9 MB (1.1 MB Compressed download)

Releases:

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Dimensions:

4288 x 2848 px | 36.3 x 24.1 cm | 14.3 x 9.5 inches | 300dpi

Date taken:

7 June 2015

Location:

Ogwen Valley, Gwynedd, Wales, UK

More information:

The reduced rotor diameter achieved using the modern anhederal blade design increases the helicopter's maximum airspeed, because the rotor blades can turn more quickly whilst reducing retreating blade stall. the downside is the greater air velocity - which is considerable when the aircraft is hovering near you! The Bristows Search and Rescue operation took over responsibility for helicopter rescue in north Wales on 1 July 2015, as the operations of C Flight 22 Squadron at RAF Valley ceased. The aircraft operate from a specially designed facility at Caernarfon airport. The UK Maritime and Coastguard Agency awarded Bristow Group a £2.5bn contract to operate 11 S-92s (and 11 AW189s) from 10 bases around the UK to provide Search and Rescue services, to replace the Royal Air Force's Sea Kings of 22 and 202 squadrons. The new aircraft is a modern design, replacing a venerable old aircraft with one with electronic displays, radar, night vision equipment and 2 winches as well as a rear access ramp. Bristow's Group previously operated rescue helicopters from 2 UK sites in Scotland, and in 2015 started a steady process of taking over services from the military Sea Kings operated by the Royal Air Force and the Royal Navy. The vast majority of the crews are highly experienced search and rescue pilots and winch men.